A Gulf, Mobile & Northern locomotive sits in the yard at Louisville during the same month that the Gulf, Mobile & Northern and Mobile & Ohio were officially merged to become the Gulf, Mobile & Ohio. Notice the GM&N water tower. Picture taken sometime in September of 1940.

Fire Power. Here is an original photo by an unidentified photographer that was taken in East Altoona, Pennsylvania, during August of 1954. Shown here is Pennsylvania Railroad engine #352, an I-1SA (2-10-0) "Decapod" built in Juniata as an I-1S during 1918, rebuilt as an I-1SA in June of 1942, and retired in January of 1956. Parked on the ready track just West of the East Altoona Roundhouse, #352 is poised for action.

Fire Power. Here is an original photo by an unidentified photographer that was taken in East Altoona, Pennsylvania, during August of 1954. Shown here is Pennsylvania Railroad engine #352, an I-1SA (2-10-0) "Decapod" built in Juniata as an I-1S during 1918, rebuilt as an I-1SA in June of 1942, and retired in January of 1956. On the left is the East Altoona Roundhouse, in the distance is the East Altoona Coaling Tipple, on the right is a portion of the Little Juniata River. Photo taken from the 17th Street Bridge in Juniata.

Fire Power. Here is an original photo by an unidentified photographer that was taken in East Altoona, Pennsylvania, during August of 1954. Shown here is Pennsylvania Railroad engine #352, an I-1SA (2-10-0) "Decapod" built in Juniata as an I-1S during 1918, rebuilt as an I-1SA in June of 1942, and retired in January of 1956. In the center is Homer Tower and the Westbound Classification Yard, to the right is the East Altoona Coaling Tipple. Photo taken from the 17th Street Bridge in Juniata.

Here is the front cover of a six-page cover article by Bert Pennypacker entitled "Conquering The Alleghenies in 1923." It was published originally in the "National Railway Bulletin," Volume 53, Number 2, 1988. Photo by John Hollingshead. Photo Caption: "Pennsy's massive fleet of 598 class I1s Decapods was built to move heavy tonnage over the Allegheny Mountain grades of central Pennsylvania. But the big 'hippos' were used throughout the railroad's Central Region as far west as mid-Ohio, and later found their way into Eastern Region territory. Although their best documented assignment was hauling Bethlehem Steel ore trains out of Northumberland, Pa., in the mid-1950's, the cover picture shows Altoona-built No. 735 approaching Pittsburgh with what appears to be a U.S. Steel train loaded with Mesabi iron ore from Cleveland or another Lakes port. Altoona turned out the first 123 of the class, beginning with prototype No. 790 in 1916." #735 was built in Juniata during 1919 and retired in July of 1951.

Here is a photo from Mr. Karl E. Schlachter. It was published originally in the October 1960 issue of "Railroad" magazine, page 33. Photo Caption: "Pennsy 2-10-0 pusher engines 4545 and 1284 on Horseshoe Curve in March, 1947." Shown here (R to L) are PRR engines #4545 and #1284. Both are I-1SA (2-10-0) "Decapods." #4545 was built by the Baldwin Locomotive Works during 1923 and retired in February of 1952. #1284 was built in Juniata during 1919 and also retired in February of 1952. Note the rear-end brakeman on the caboose! (#1,800)

Here is page 26 of a 64-page booklet published by Harry E. Albrecht entitled "World Famous Horseshoe Curve, Altoona, Pennsylvania Railroad." It was issued originally during September of 1973. Bottom Photo: Shown here (R to L) are PRR engines #4545 and #1284. Both are I-1SA (2-10-0) "Decapods." #4545 was built by the Baldwin Locomotive Works during 1923 and retired in February of 1952. #1284 was built in Juniata during 1919 and also retired in February of 1952. Bottom photo taken by Karl E. Schlachter in March of 1947.

Here is page one of a five-page article by David P. Morgan entitled "Holiday near Hollidaysburg, helplessness on Horse Shoe, oblivion at Orbisonia." It was published originally in the March 1957 issue of "Trains" magazine," page 46. Shown here is Pennsylvania Railroad engine #1753, an I-1SA (2-10-0) "Decapod" built in Juniata during 1918 and retired in October of 1958. Photo by Philip R. Hastings taken during September of 1955.

Here is page three of a five-page article by David P. Morgan entitled "Holiday near Hollidaysburg, helplessness on Horse Shoe, oblivion at Orbisonia." It was published originally in the March 1957 issue of "Trains" magazine," page 48. Top Photo: Shown here is Pennsylvania Railroad engine #1753, an I-1SA (2-10-0) "Decapod" built in Juniata during 1918 and retired in October of 1958. Photos by Philip R. Hastings taken during September of 1955.

Here is page 21 of a 21-page article by Jim Hilker, Jr., entitled "A History of the Hollidaysburg & Petersburg Branch of the Pennsylvania Railroad." It was published originally in the Spring 2007 issue of "The Keystone" magazine, page 60. "The Keystone" is published by the Pennsylvania Railroad Technical and Historical Society. Publication Office: Post Office Box 712; Altoona, Pennsylvania 16603-0712. Shown here are two photos by Mr. Philip R. Hastings of Pennsylvania Railroad engine #1753, an I-1SA (2-10-0) "Decapod" built in Juniata during 1918 and retired in October of 1958. Photo Caption: "I-1sa #1753 pushing on the rear of a freight train on the H&P Branch in September 1955. The Frankstown Branch of the Juniata River (which the Petersburg Branch follows much of the way) is in the foreground."

Here is page 36 of a 43-page article by James J.D. Lynch, Jr., entitled "Overview Of The History And Development Of The Pennsylvania Railroad's Altoona Shops." It was published originally in the Autumn 1996 issue of "Keystone" magazine, page 53. Top Photo: Shown here is PRR engine #8546, an ES-15M built by GM-EMD in 1953 and rated at 1,500 horsepower. Middle Photo: Shown here is PRR engine #2040, an I-1SA (2-10-0) "Decapod" built in Juniata as an I-1S during 1918, rebuilt as an I-1SA in April of 1943, and retired in October of 1959. Bottom Photo: Shown here are PRR engines #2004 and another unit whose number is not recorded. Both were built by the Baldwin Locomotive Works. #2004 is a BF-16 built in 1951 and rated at 1,600 horsepower. Photo taken from the 7th Street Bridge.

Originally built by both Baldwin and Alco for the Russia in 1917-18, a large number were suddenly available with the collapse of the Russion Government. The Erie purchased this decapod and eventually sold it to the New York, Susquehanna & Western in December of 1944. Specifics - J-2 class, 52" drivers, 180 psi boiler pressure, 25x28" (2) cylinders, engine weight of 197,900 lb, tractive effort of 32,467 lb. Eventually the unit was scrapped and no NYSW decapod survived.